Ice AP901, Инструкция по эксплуатации

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Instruction manual – AP901 Arc Protection Unit 21 (39
)
A1017B
6.2 W
IND
-
POWER APPLICATION EXAMPLE
(
LIGHT ONLY CONDITION
)
AP901 may be applied using arc light only as tripping criteria.
The example in Figure 6-2 shows a typical wind-power scheme where a Permanent Magnet
Synchronous Generator (PMSG) is applied with a converter cabinet and LV/MV transformer.
The AP901 is equipped with four point sensor channels and each channel may have up to
three sensors (type AS01) connected in series allowing for up to 12 point sensors. Additionally
one fiber optic loop sensor channel is available as an option. In this application three sensor
channels with three sensors in each channel are utilized. Also a fiber loop sensor for monitoring
the generator winding and terminations is utilized. In the event of arc light in any of the
compartments containing a sensor the AP901 unit will execute a trip to all three circuit breakers
in 7ms thus clearing the arc fault in total time of 7ms + CB opening time. Additionally an
electronic lock-out relay T3 is utilized to provide lock-out function ensuring the fault is
recognized and corrected prior to putting the generator back into service (safety loop).